Electric bike



FIG. 1 is a front and left side perspective view of an electric bike embodying our new design;

FIG. 2 is a front and right side perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a left side elevational view thereof; and,

FIG. 6 is a right side elevational view thereof.

The broken lines in the drawings illustrate portions of the electric bike that form no part of the claimed design. 

CLAIM The ornamental design for an electric bike, as shown and described. 